Small-arm.



No. 70|,32|. Patented June 3, I902.

A. FRANK.

SMALL mm. (Application filed Aug. 22, 1901.)-

(No Model.)

Nrrnn. STATES PATENT OFFICE. f

' ADOLF FRANK, OF HAMBURG, GERMANY.

SMALL-AR SPECIFICATION forming part of Letters Patent No. 701,321, datedJune 3, 1902.

Application filed August 22,1901. gods-nio- 72,943..(No model.) i

To aZL whom, it may concern:

Be it known that I, ADOLF FRANK, a sub-. 'ect of the German Emperor, anda resident of Hamburg, in the German Empire,.have in vented certain newand useful Improvements Relating to Small-Arms, of which thefollowingt'i's a'specification.

This invention relates to'im provements in small-arms, and has for itsobject to provide an improved cocking device more particularly designedfor drop-down guns, said cocking device differing from others by thefact that .it has no means for cooking the hammer or hammers when thegun is not in use, so that while firing is interrupted the hammer orhammers are in such an uncooked position as to obviate all danger ofimparting suflicient motion to the hammer by external shocks, vi-

- inggun with internal locking-bolt operated by an externallocking-lever, and for that purpose reference is taken' to theaccompanying sheet of drawings, in whicha Figure .1 is a verticallongitudinal section of a breech-lock provided with my improved cockingdevice, the parts being'in the posi tion of rest after the discharge ofthe gun,

only so much of the breech-lock being shown.

as is necessary for the understanding of the invention. Fig. 2 is asimilar view showing the parts of the breech-lock in the loading position. The full-cock position of the parts before the discharge ofthegun is shown in dotted lines. Fig. 3 is a detailed view showing inplan, partlyiu section, the mechanism for locking and unlocking thebarrel and for removing the hammers out of the path of the cartridge. v

Similar letters refer to similar parts throughout the several views. a

Each hammer a is pivotally secured at a in the lock in the usual manner;but in lieu of the ordinarymechanism for keeping the hammers cooked thelatter are formed each with aniarm a, adapted to engage with the freeend of-the corresponding searb when removed out of the path of thecartridge by the pins or' shou'lders c of the locking-bolt c, operatedbythe-arm d, rigidly connected with the external lever d. -The rear end 0of the lockthe arm (1' of the lever d. From Figs. 1 and 3 itis obviousthat lateral movement of the 'ing-bolt' o is at d pivotally connectedwith locking-lever 01 places the locking parts 0 c o intotheir rear-endposition,-thereby unlocking in well-known manner the barrel and slightlyswinging back the hammers a. In this position .(shown in Fig. 2) thehammer is not sufficiently cocked as to be capable of firing thecartridge in case the arm a ofthe hammer becomes disengaged from thesear b by reason of shocks, defective mechanism, &c. :Ihe hammer-springe is as yet but slightly flexed but the hammer is retained by the searb'even after the lockingbolt 0 0"0 has been moved away from the hammerinto its forward looking position. Thus the hammers are placed out ofthe path of the cartridge and at the same time are in such aninoperative position as to be incapable of firing the charge. I

It is only by drawing the trigger f backward that the sear I) fullycocks the hammer and its spring e, which latter impels the hammeragainst the cartridge when the arm a disengages from thecompletely-depressed sear b. This full-cock position of-the parts isshown in Fig. 2 by dotted lines. f

After the weapon has been discharged the sear, now released by thefinger, remains at first beneath the arm-a of the hammer, Fig. 1, and itis only after the hammer has been slightly. moved back out of the pathof the cartridge that the said arm engages beneath the sear, Fig. 2. Toenable this to be eifected, the end of the sear is, for example,provided with a spring-actuated slide-piece or catch b, which beingpushed back by the hammer-arm (1. allows the latter to move down infront of the sear until it engagesjunderneath the said catch of thesear.

With my improved construction and after the preliminary backwardswinging of the hammer it requires but a slight motion of the trigger fto fully cockthe hammer? and then.

disengaging it forfiring. The hammerand said boltis moved in onedirection; of a triggfi find a sear controlled thereby and adapted toengage the hammer and hold it in its said position to admit of themovement of the locking-bolt out of engagement with the hammer and tomovethe latter into full-cock position by a pull on the trigger and torelease said hapimer by a further pull on said trigger, for the purposeset forth.

2. The combination with a spring-actuated hammer and a to-and-fromovable hand-operated locking-bolt adapted to move said hammer into ahalfcock position and lock the same against the stress of its spring; ofa spring-actuated trigger and a spring-actuated sear controlled therebyand adapted to engage the hammer and hold it in its said position toadmit of the movement of the locking-bolt out of engagement with saidhammer and to move the latter into full-cock position by a pull on thetrigger and to release itbya fu rther pull on said trigger, for thepurpose set forth ll. The combination with a spring-actuated hammer anda hand-operated lockingbolt adapted when moved in one direction toretract and lock said hammer against the stress,

of its spring; of a spring-actuated trigger and a spring-actuated searmounted on said trigger and adapted to engage the hammerwhen retractedand to release the same by a pull on the trigger against the stress ofits spring, for the purpose set forth.

4. In a double-barrel breakdown gun, the combination with the hammer anda to-andfro movable locking-bolt for the barrels, said bolt adapted tomove thehammers to a halfcock position against the stress of theirsprings when moved to unlock the barrels; of a trigger and a scar foreach hammer, sait sears adapted to engage and lock their respec tivehammers into their said half-cock position, to admit of the movement ofthe locking-bolt out of engagement with the hammers and into engagementwith the barrels, and then by a pull on the triggers to move saidhammers into full-cock position and'by a further pull on said triggersto release the hammers, for the purpose set forth.

5. The combination with a spring-actuated hammer, and means for movingthe same into half-cock position and again releasing it; of a scar, anda trigger controlling the same, said sear adapted to engage and holdsaid hammer in its aforesaid position, to move said hammer intofull-cock position by a pull on'the trigger, and to release it by afurther pull on said trigger, for the purpose set forth.

ADOLF FRANK.

XVitnesses:

Mnx KAEMTFF,

H. L. MUMMENHOFF.

